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PC817X3
Sharp Microelectronics
OPTOISOLATOR 5KV TRANS 4DIP
1485 Pcs New Original In Stock
Optoisolator Transistor Output 5000Vrms 1 Channel 4-DIP
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Minimum 1
5.0 / 5.0
- (159 Ratings)
PC817X3
Product Overview
7928805
DiGi Electronics Part Number
PC817X3-DGManufacturer
Sharp Microelectronics
PC817X3
Description
OPTOISOLATOR 5KV TRANS 4DIPInventory
1485 Pcs New Original In Stock
Optoisolator Transistor Output 5000Vrms 1 Channel 4-DIP
Quantity
Minimum 1
Minimum 1
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PC817X3 Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
-
Series
-
Product Status
Obsolete
Number of Channels
1
Voltage - Isolation
5000Vrms
Current Transfer Ratio (Min)
200% @ 5mA
Current Transfer Ratio (Max)
400% @ 5mA
Turn On / Turn Off Time (Typ)
-
Rise / Fall Time (Typ)
4µs, 3µs
Input Type
DC
Output Type
Transistor
Voltage - Output (Max)
80V
Current - Output / Channel
50mA
Voltage - Forward (Vf) (Typ)
1.2V
Current - DC Forward (If) (Max)
50 mA
Vce Saturation (Max)
200mV
Operating Temperature
-30°C ~ 100°C
Mounting Type
Through Hole
Package / Case
4-DIP (0.300", 7.62mm)
Supplier Device Package
4-DIP
Datasheet & Documents
Datasheets
Download PC817X3 Product Specification (PDF)
HTML Datasheet
PC817X3-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
425-1467-5
Standard Package
50
Alternative Parts
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
客服反應迅速，能準確理解我的需求並提供有效協助。
December 02, 2025
Je suis impressionné par la rapidité avec laquelle ma commande est arrivée. Excellent service de livraison.
December 02, 2025
DiGi Electronics provides exceptional customer service that truly exceeds expectations.
December 02, 2025
I am impressed by their quick response times and thorough support solutions.
December 02, 2025
The website feels very responsive, even when multiple pages are open.
December 02, 2025
They utilize advanced systems to monitor and control inventory levels effectively.
December 02, 2025
The loading speed of product pages is impressive, allowing me to browse efficiently.
December 02, 2025
The consistency in their products means I can focus more on designing instead of worrying about component reliability.
December 02, 2025
Their commitment to quality at an affordable price is truly commendable.
December 02, 2025
DiGi Electronics consistently uses secure packaging materials that protect products throughout the delivery process.
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Frequently Asked Questions (FAQ)
Can the PC817X3 be used as a drop-in replacement for the LTV-816 in a motor control feedback circuit, and what design risks should be considered?
While the PC817X3 and LTV-816 share similar pinouts and 5000Vrms isolation ratings, the PC817X3 has a higher CTR range (200-400% @ 5mA) compared to the LTV-816 (50-600%), which may cause over-saturation in feedback loops designed for lower CTR. Additionally, the PC817X3 is RoHS non-compliant and obsolete, introducing long-term supply and compliance risks. Designers should verify CTR margins at elevated temperatures, as PC817X3's transistor output may degrade faster over time in high-temperature motor environments, risking false triggering. Always re-characterize the drive current (If) and validate Vce(sat) under load.
What are the reliability concerns when using the PC817X3 in a high-temperature industrial power supply operating at 90°C ambient?
The PC817X3 has a maximum operating temperature of 100°C, leaving only a 10°C margin in a 90°C ambient environment. At elevated temperatures, LED degradation accelerates, reducing CTR over time and potentially causing the transistor output to fail to saturate, especially if driven near 5mA. To mitigate risk, derate the forward current (If) to 3–4mA, use tighter tolerance on the base resistor, and verify long-term performance with accelerated life testing. Consider monitoring output voltage margin in production systems to detect early optocoupler aging.
Why might the PC817X3 fail unexpectedly in a new design despite meeting isolation and CTR specs, and how can this be prevented?
The PC817X3 is marked as obsolete and RoHS non-compliant, increasing risks of counterfeit or out-of-spec parts in the supply chain, even when 'new original' is claimed. Unexpected failures often stem from inconsistent LED efficiency or bond wire weaknesses in legacy batches. To prevent field failure, source from authorized distributors only, perform incoming lot testing on CTR and Vf, and include margin (e.g., 30% higher If) in the drive circuit. Consider redesigning with active replacements like ISP817C, which offers AEC-Q101 compliance and better traceability.
How does the PC817X3 perform in fast digital signal isolation compared to modern alternatives like VO615A-9, especially in rise and fall time?
The PC817X3 has typical rise and fall times of 4µs and 3µs, limiting its use to signals below 50kHz, whereas the VO615A-9 achieves <3µs switching, enabling cleaner digital isolation up to 100kHz. In applications like encoder feedback or digital I/O, PC817X3's slower response may introduce timing skews or data errors. For bidirectional or high-speed signals, consider the trade-off: PC817X3 is cost-effective for slow feedback loops, but VO615A-9 offers better performance and is actively supported. Avoid using PC817X3 in PWM control above 20kHz without output buffering.
What are the PCB layout and thermal design considerations when integrating the PC817X3 in a through-hole power supply with high leakage voltage?
The PC817X3 uses a 4-DIP through-hole package with 5000Vrms isolation, but achieving rated isolation requires proper creepage and clearance—minimum 7.62mm (300 mils) between input and output traces. Use a slit in the PCB under the package to increase creepage distance. Since the device dissipates heat via leads, ensure adequate copper connections to aid thermal dissipation. Avoid placing near high-heat components like transformers. In high-humidity environments, conformal coating is advised to prevent leakage paths. Monitor forward current thermals: sustained 50mA If without pulse duty control can raise junction temperature beyond safe limits, accelerating LED aging.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
PC817X3 CAD Models
Sharp Microelectronics PC817X3 PCB symbols & footprints
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